78952640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18979}}^1$

素因数の和:19009

約数の個数: 56

約数和(自身を含む): 202478640

約数和(自身を除く): 123526000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 18979, 37958, 75916, 94895, 151832, 189790, 246727, 303664, 379580, 493454, 607328, 759160, 986908, 1214656, 1233635, 1518320, 1973816, 2467270, 3036640, 3947632, 4934540, 6073280, 7895264, 9869080, 15790528, 19738160, 39476320, 78952640]

約数ペア:

[(1, 78952640), (2, 39476320), (4, 19738160), (5, 15790528), (8, 9869080), (10, 7895264), (13, 6073280), (16, 4934540), (20, 3947632), (26, 3036640), (32, 2467270), (40, 1973816), (52, 1518320), (64, 1233635), (65, 1214656), (80, 986908), (104, 759160), (130, 607328), (160, 493454), (208, 379580), (260, 303664), (320, 246727), (416, 189790), (520, 151832), (832, 94895), (1040, 75916), (2080, 37958), (4160, 18979)]